Half the Universe's Missing Matter Has Just Been Finally Found

Discoveries seem to back up many of our ideas about how the universe got its large-scale structure.

Credit: Andrey Kravtsov (The University of Chicago) and Anatoly Klypin (New Mexico State University). Visualisation by Andrey Kravtsov

The missing links between galaxies have finally been found. This is the first detection of the roughly half of the normal matter in our universe—protons, neutrons and electrons—unaccounted for by previous observations of stars, galaxies and other bright objects in space.